实际参数列表与形式参数列表不同 ？为何会如此？

class Person
{
String name;
int age;
public void Person(String name,int age){
this.name = name;
this.age = age;
}
public void say(){

System.out.println("姓名"+ this.name +" 年龄"+ this.age);
}
}

public class AddPerson{
public static void main(String[] args){
Person p1 = new Person("王五",23);

Person p2 = new Person("赵六",34);
Person p3 = new Person();
p3.name = "张三";
p3.age = 32;

    p1.say();
    p2.say();
    p3.say();
}

}

public void Person(String name,int age){
this.name = name;
this.age = age;
}
这个地方错了，应该是这样的
public Person(String name,int age){
this.name = name;
this.age = age;
}